AWS Certified Solutions Architect – Professional SAP-C01 – Question176

The user has provisioned the PIOPS volume with an EBS optimized instance. Generally speaking, in which I/O chunk should the bandwidth experienced by the user be measured by AWS?

A. 128 KB
B. 256 KB
C. 64 KB
D. 32 KB

Correct Answer: B

Explanation:

Explanation: IOPS are input/output operations per second. Amazon EBS measures each I/O operation per second (that is 256 KB or smaller) as one IOPS.
Reference:
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-io-character…